Walmart offers the Texas Instruments TI-84 Plus Graphing Calculator for $88 with free shipping. That's tied with our mention from last month and the lowest price we could find by $12. Buy Now Tips Requires 4 AAA batteries (not included). Features approved for the PSAT, SAT, ACT, IB, and AP exams 10-digit, 8-line LCD preloaded with software, including Cabri Jr. up to 10 graphing functions split screen options I/O port Model: TI-84PLUS
Retailers mark up products by hundreds of times their cost — but you don't have to pay the premium.